40463657473 has 2 divisors, whose sum is σ = 40463657474. Its totient is φ = 40463657472.

The previous prime is 40463657471. The next prime is 40463657483. The reversal of 40463657473 is 37475636404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34340907969 + 6122749504 = 185313^2 + 78248^2 .

It is a cyclic number.

It is not a de Polignac number, because 40463657473 - 2¹ = 40463657471 is a prime.

Together with 40463657471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40463657471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20231828736 + 20231828737.

It is an arithmetic number, because the mean of its divisors is an integer number (20231828737).

Almost surely, 2^40463657473 is an apocalyptic number.

It is an amenable number.

40463657473 is a deficient number, since it is larger than the sum of its proper divisors (1).

40463657473 is an equidigital number, since it uses as much as digits as its factorization.

40463657473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 49.

The spelling of 40463657473 in words is "forty billion, four hundred sixty-three million, six hundred fifty-seven thousand, four hundred seventy-three".